nxpfs85xx.h

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 *
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/**
 * @file    nxpfs85xx.h
 * @author  foxBMS Team
 * @date    2020-03-18 (date of creation)
 * @updated 2020-03-18 (date of last update)
 * @ingroup DRIVERS
 * @prefix  FS85X
 *
 * @brief   Header for the driver for the FRAM module
 *
 * @details It must always be used when creating new c header files.
 *
 */
 
#ifndef FOXBMS__NXPFS85XX_H_
#define FOXBMS__NXPFS85XX_H_
 
/*========== Includes =======================================================*/
#include "fram_cfg.h"
#include "nxpfs85xx_cfg.h"
 
#include "sbc_fs8x.h"
#include "sbc_fs8x_communication.h"
#include "spi.h"
 
/*========== Macros and Definitions =========================================*/
/** struct for fail-safe registers
 * for register description see datasheet FS84_FS85 - Rev. 3.0 - 9 April 2019 */
typedef struct FS85X_FS_REGISTERS {
    uint16_t grl_flags;                             /*!< FS8X_FS_GRL_FLAGS_ADDR */
    uint16_t iOvervoltageUndervolateSafeReaction1;  /*!< FS8X_FS_I_OVUV_SAFE_REACTION1_ADDR */
    uint16_t iOvervoltageUndervolateSafeReaction2;  /*!< FS8X_FS_I_OVUV_SAFE_REACTION2_ADDR */
    uint16_t iWatchdogConfiguration;                /*!< FS8X_FS_I_WD_CFG_ADDR */
    uint16_t i_safe_inputs;                         /*!< FS8X_FS_I_SAFE_INPUTS_ADDR */
    uint16_t iFailSafeSateMachine;                  /*!< FS8X_FS_I_FSSM_ADDR */
    uint16_t i_svs;                                 /*!< FS8X_FS_I_SVS_ADDR */
    uint16_t watchdogWindow;                        /*!< FS8X_FS_WD_WINDOW_ADDR */
    uint16_t watchdogSeed;                          /*!< FS8X_FS_WD_SEED_ADDR */
    uint16_t watchdogAnswer;                        /*!< FS8X_FS_WD_ANSWER_ADDR */
    uint16_t overvoltageUndervoltageRegisterStatus; /*!< FS8X_FS_OVUVREG_STATUS_ADDR */
    uint16_t releaseFs0bPin;                        /*!< FS8X_FS_RELEASE_FS0B_ADDR */
    uint16_t safeIos;                               /*!< FS8X_FS_SAFE_IOS_ADDR */
    uint16_t diag_safety;                           /*!< FS8X_FS_DIAG_SAFETY_ADDR */
    uint16_t intb_mask;                             /*!< FS8X_FS_INTB_MASK_ADDR */
    uint16_t states;                                /*!< FS8X_FS_STATES_ADDR */
} FS85X_FS_REGISTER_s;
 
/** struct for main registers
 * for register description see datasheet FS84_FS85 - Rev. 3.0 - 9 April 2019 */
typedef struct FS85X_MAIN_REGISTERS {
    uint16_t flag;              /*!< FS8X_M_FLAG_ADDR */
    uint16_t mode;              /*!< FS8X_M_MODE_ADDR */
    uint16_t registerControl1;  /*!< FS8X_M_REG_CTRL1_ADDR */
    uint16_t registerControl2;  /*!< FS8X_M_REG_CTRL2_ADDR */
    uint16_t analogMultiplexer; /*!< FS8X_M_AMUX_ADDR */
    uint16_t clock;             /*!< FS8X_M_CLOCK_ADDR */
    uint16_t int_mask1;         /*!< FS8X_M_INT_MASK1_ADDR */
    uint16_t int_mask2;         /*!< FS8X_M_INT_MASK2_ADDR */
    uint16_t flag1;             /*!< FS8X_M_FLAG1_ADDR */
    uint16_t flag2;             /*!< FS8X_M_FLAG2_ADDR */
    uint16_t vmon_regx;         /*!< FS8X_M_VMON_REGX_ADDR */
    uint16_t lvb1_svs;          /*!< FS8X_M_LVB1_SVS_ADDR */
    uint16_t memory0;           /*!< FS8X_M_MEMORY0_ADDR */
    uint16_t memory1;           /*!< FS8X_M_MEMORY1_ADDR */
    uint16_t deviceId;          /*!< FS8X_M_DEVICEID_ADDR */
} FS85X_MAIN_REGISTERS_s;
 
typedef enum FS85X_OPERATION_MODE {
    SBC_NORMAL_MODE,
    SBC_DEBUG_MODE,
} FS85X_OPERATION_MODE_e;
 
/** struct for FIN configuration */
typedef struct FS85X_FIN_CONFIGURATION {
    bool finUsed;                /*!< flag if FIN feature of SBC is used */
    STD_RETURN_TYPE_e finState;  /*!< Is set to STD_NOT_OK if short circuit between FIN and RSTB pin detected */
    volatile uint32_t *pGIOport; /*!< pointer to port where FIN pin of SBC is connected to */
    uint32_t pin;                /*!< pin where FIN pin of SBC is connected to */
} FS85X_FIN_CONFIGURATION_s;
 
/** stores a pointer to the persistent entry in the FRAM */
typedef struct SBC_NVRAM_INFO {
    FRAM_BLOCK_ID_e entry; /*!< FRAM ID of persistant SBC entry in FRAM */
    FRAM_SBC_INIT_s *data; /*!< pointer to SBC entry in FRAM module */
} SBC_NVRAM_INFO_s;
 
/** state struct to create SBC instance */
typedef struct FS85xx_STATE {
    SPI_INTERFACE_CONFIG_s *pSpiInterface; /*< pointer to used SPI interface configuration */
    fs8x_drv_data_t configValues;          /*!< configuration of used communication interface */
    FS85X_FIN_CONFIGURATION_s fin;         /*!< configurations for FIN functionality */
    FS85X_MAIN_REGISTERS_s mainRegister;   /*!< FS85xx main registers */
    FS85X_FS_REGISTER_s fsRegister;        /*!< FS85xx safety registers */
    SBC_NVRAM_INFO_s nvram;      /*!< configuration and data for persistant memory required for initialization */
    FS85X_OPERATION_MODE_e mode; /*!< current operation mode of FS85xx */
} FS85xx_STATE_s;
 
/*========== Extern Constant and Variable Declarations ======================*/
extern FS85xx_STATE_s fs85xx_mcuSupervisor;
 
/*========== Extern Function Prototypes =====================================*/
/**
 * @brief           Configures SBC during INIT_FS phase
 * @details         Checks first if SBC currently is in INIT_FS phase and if
 *                  not transfers SBC back into INIT_FS. Verifies basic checks,
 *                  configures fail-safe registers and closes INIT_FS
 *                  afterwards.
 * @param[in,out]   pInstance   SBC instance that is initialized
 * @return          #STD_OK if all checks were successful and SBC configured
 *                  correctly, otherwise #STD_NOT_OK
 */
extern STD_RETURN_TYPE_e FS85X_InitFS(FS85xx_STATE_s *pInstance);
 
/**
 * @brief           Calculates the number of required watchdog refresh to reset
 *                  fault error counter
 * @param[in,out]   pInstance                   SBC instance that is
 *                                              initialized
 * @param[out]      requiredWatchdogRefreshes   number of required good
 *                                              watchdog refreshes
 * @return          #STD_OK if required watchdog refreshes were calculated
 *                  successfully, otherwise #STD_NOT_OK
 */
extern STD_RETURN_TYPE_e FS85X_Init_ReqWDGRefreshes(FS85xx_STATE_s *pInstance, uint8_t *requiredWatchdogRefreshes);
 
/**
 * @brief           Checks if fault error counter is zero
 * @param[in,out]   pInstance   SBC instance where fault error counter is
 *                              checked
 * @return          #STD_OK if fault error counter equals zero, otherwise
 *                  #STD_NOT_OK
 */
extern STD_RETURN_TYPE_e FS85X_CheckFaultErrorCounter(FS85xx_STATE_s *pInstance);
 
/**
 * @brief           Performs SBC safety path checks
 * @details         Function perform safety path checks for FIN, FS0B and RSTB
 *                  to ensure that all pins work as expected
 * @param[in,out]   pInstance where the safety paths are checked
 * @return          #STD_OK if safety path check successful, otherwise
 *                  #STD_NOT_OK
 */
extern STD_RETURN_TYPE_e FS85X_SafetyPathChecks(FS85xx_STATE_s *pInstance);
 
/**
 * @brief           Trigger watchdog
 * @details         Triggers watchdog of passed SBC instance and verify if it
 *                  was good refresh within the configured window
 * @param[in,out]   pInstance   SBC instance where the watchdog is triggered
 * @return          #STD_OK if watchdog has been triggered successfully,
 *                  otherwise #STD_NOT_OK
 */
extern STD_RETURN_TYPE_e SBC_TriggerWatchdog(FS85xx_STATE_s *pInstance);
 
/*========== Externalized Static Functions Prototypes (Unit Test) ===========*/
 
#endif /* FOXBMS__NXPFS85XX_H_ */